Scientists at the University of Pittsburgh School of Medicine went on a molecular fishing trip and netted a catch of new mediators that not only can explain how omega-3 fatty acids reduce inflammation, but also hint at novel ...

Docosahexaenoic acid (DHA), an omega-3 fatty acid, is essential for the growth and development of infants' brains. Very premature infants may be deficient in DHA because they miss out on the third trimester in utero when ...

Women whose diets are rich in foods containing Omega-3 oils might be less likely to develop endometriosis, while those whose diets are heavily laden with trans fats might be more likely to develop the debilitating condition, ...

A new heart-healthy, essential omega-3 fatty acid is about to improve an American pantry staple: soybean oil. The new scientific advance will move biotechnology onto the average consumer's daily radar. U.S. soybean farmers ...

The next treatment for cancer might come from fish says a new research report published in the March 2010 print edition of the FASEB Journal. In the report, scientists show that the omega-3 fatty acid, "docosahexaenoic acid" ...

(PhysOrg.com) -- Infant intelligence is more likely to be shaped by family environment than by the amount of docosahexoic acid (DHA), an omega 3 fatty acid, fed in breast milk or fortified formula, according to new research ...

Patients with coronary heart disease who had higher omega-3 fatty acid blood levels had an associated lower rate of shortening of telomere length, a chromosome marker of biological aging, raising the possibility that these ...

(PhysOrg.com) -- In the early stages of Alzheimer's disease, patients typically suffer a major loss of the brain connections necessary for memory and information processing. Now, a combination of nutrients that was developed ...

Omega-3 fatty acid

n−3 fatty acids (popularly referred to as ω−3 fatty acids or omega-3 fatty acids) are a family of unsaturated fatty acids that have in common a final carbon–carbon double bond in the n−3 position; that is, the third bond from the methyl end of the fatty acid.

Important nutritionally-essential n−3 fatty acids are: α-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA), all of which are polyunsaturated. The human body cannot synthesize n−3 fatty acids de novo, but it can form 20-carbon unsaturated n−3 fatty acids (like EPA) and 22-carbon unsaturated n−3 fatty acids (like DHA) from the eighteen-carbon n−3 fatty acid α-linolenic acid. These conversions occur competitively with n−6 fatty acids, which are essential closely related chemical analogues that are derived from linoleic acid. Both the n−3 α-linolenic acid and n−6 linoleic acid are essential nutrients which must be obtained from food. Synthesis of the longer n−3 fatty acids from linolenic acid within the body is competitively slowed by the n−6 analogues. Thus accumulation of long-chain n−3 fatty acids in tissues is more effective when they are obtained directly from food or when competing amounts of n−6 analogs do not greatly exceed the amounts of n−3.[citation needed]